Automatically finds and test coupons while you shop online. Install now and start saving money!
CouponDuos: The Money Saver Extension
Automatically discover coupons while shopping online. Save in ways you never thought were possible!
Test The Promo Codes
We test and apply the best promo codes for you in a matter of seconds so you don’t have to!
Collaborating with 60,000+ Stores Worldwide
More than 60,000 stores from worldwide are teaming with CouponDuos, helping you save on the brands that you love.
Best Part: CouponDuos is free!
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User reviews
Xintong Liu (ID: 0000001c7b0fa030) Voted 5 ★ - Updated 08/05/2021
Jie Zhang (ID: 00000055c8eeabe1) Voted 5 ★ - Updated 03/16/2021
Michael Chen (ID: 000000a11cc098e0) Voted 5 ★ - Updated 03/15/2021
echo chen (ID: 0000006afbdbdb15) Voted 5 ★ - Updated 03/15/2021